55022321200 has 120 divisors (see below), whose sum is σ = 164809808640. Its totient is φ = 17149804800.

The previous prime is 55022321161. The next prime is 55022321213. The reversal of 55022321200 is 212322055.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862420 + ... + 924019.

It is an arithmetic number, because the mean of its divisors is an integer number (1373415072).

Almost surely, 2^55022321200 is an apocalyptic number.

55022321200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55022321200 is an abundant number, since it is smaller than the sum of its proper divisors (109787487440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55022321200 is a wasteful number, since it uses less digits than its factorization.

55022321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786475 (or 1786464 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 55022321200 its reverse (212322055), we get a palindrome (55234643255).

The spelling of 55022321200 in words is "fifty-five billion, twenty-two million, three hundred twenty-one thousand, two hundred".